论文部分内容阅读
叙永县位于四川盆地南部边缘,与云南贵州两省毗连。由于其特殊的地形和气候条件,成为新发展起来的云贵型烤烟区。过去,对本地气候特点掌握不好,产量一直是低而不稳。近两年来充分利用了气候优势,烤烟产量和质量都得到大幅度提高。一、利用山区农业气候优势,集中发展烤烟烤烟是一种产质兼顾的叶用经济作物。品质优良的烤烟适宜温度为19.2～24.9℃。叙永山区7～8月日均温为22.4～23.7℃,为烟草生长最佳适宜温度。山区雨水调匀,多散射光,光合效率高,有利于烟叶碳水化
Xuyong County is located in the southern margin of the Sichuan Basin, Yunnan and Guizhou provinces adjacent to two. Due to its special topography and climatic conditions, it has become a newly developed Yunnan-Guizhou flue-cured tobacco area. In the past, there was a poor grasp of the local climate and the output had been low and unstable. In the past two years, the climate advantage has been fully utilized, and the yield and quality of tobacco have been greatly increased. First, the use of mountain agricultural climate advantages, focus on the development of flue-cured tobacco is a yield and quality of leaves with cash crops. Good quality flue-cured tobacco suitable temperature is 19.2 ~ 24.9 ℃. The daily average temperature of Xuyong Mountain from July to August was 22.4 ~ 23.7 ℃, which was the optimum temperature for tobacco growth. Mountain rainwater and more uniform, more scattered light, photosynthetic efficiency is conducive to carbonation of tobacco